m105 help needed on the road

[joshs1ofakindxj]

I have a crappy blackberry curve or I would do some research and read the tm on this because I'm sure the answer is there...

Can I adjust my m105s brakes without pulling the drum and hub?

I'm driving my deuce and trailer to the butler bantam fest today and for the first time I hooked up the 1968 m105s single air line and I could feel a big difference stopping but after a few stops I saw a lot of smoke and smelled brakes burning so I shut the air line valve.

Who knows the last time those brakes were really used but they looked new when I serviced the bearings

 

[emmado22]

Your relay valve sounds like it is bad.

 

[joshs1ofakindxj]

I thought the relay valve caused the brakes to stay on stuck. Mine definitely release after braking

 

[Josh]

If the brakes aren't dragging , then just unhook the airline and worry about when you get home. Just drive smart and you will be fine with out the 105 brakes.

 

[emmado22]

The relay valve can do funny things when it's not working right. Mud daubers dont help either.

 

[goldneagle]

Did you cross the hoses to connect to the glad hands? If you hooked them straight instead of crossing them you got them backwards! I did that on my M105 recovery and the brakes locked up. Left air hose goes to right side. Right air hose goes to left side.

 

[Motorcar]

To directly answer your question, yes you can adjust them without pulling the drums. On the back plate there are two 5/8 nuts at the top and bottom that can be adjusted with a wrench. Those are the adjustment excentrics, turn one way the shoe gets tighter, the other looser, one adjuster per shoe. A couple of turns and your wheel will be locked down, go the other way! There may be nothing wrong with your air or master cylinder, if the brakes were adjusted just on the tight side then a bit of friction from use and everything tightens up and smoking brakes are the result.

 

[joshs1ofakindxj]

Ok I might try adjusting them

I have an older trailer with only one air line so they're definitely not crossed haha

 

[Josh]

Not so much crossed. Just alot of people hook them to passenger side gladhand, not the driver side, were it is suppose to go.

 

[KsM715]

Drivers side is the brake circuit. Passenger side is the emergency circuit. Passenger side will supply air all the time.

 

[clinto]

The M105 series of trailers adjusts the same way as the deuces: A 3/4" or 7/8" (I can't remember) wrench on the upper eccentrics, turn them to adjust the shoe in and out.

You will therefore not need to remove the drum.

 

[Motorcar]

From post #7 ...

On the back plate there are two 5/8 nuts at the top and bottom that can be adjusted with a wrench

My 105A2's are 5/8 adjusters, your mileage may vary...

 

[clinto]

From post #7 ... My 105A2's are 5/8 adjusters, your mileage may vary...

Err....my bad, didn't see post #7 and I think they are 5/8"-I was going off memory.

Oooooops.

 

[Motorcar]

 

[michigandon]

Did you cross the hoses to connect to the glad hands? If you hooked them straight instead of crossing them you got them backwards! I did that on my M105 recovery and the brakes locked up. Left air hose goes to right side. Right air hose goes to left side.

I made the exact same mistake with my newly acquired M105 last night! Sure wish I woulda read this thread first.